906 results about "Thin-film-transistor liquid-crystal display" patented technology

Displays such as liquid crystal displays may be used in electronic devices. During operation of a display, electrostatic charges on the surface of the display may give rise to electric fields. One or more electric field shielding layers may be provided in the display to prevent the electric fields from disrupting operation of the liquid crystals material in the display. The shielding layers may be formed at a location in the stack of layers that make up the display that is above the liquid crystal material of the display. Touch sensors and thin film transistors may be located below the shielding layer.

Disclosed are novel poly(benzodithiophenes), their use as semiconductors or charge transport materials in optical, electro-optical or electronic devices, for example, liquid crystal displays, optical films, organic field effect transistors (FET or OFET) for thin film transistor liquid crystal displays and integrated circuit devices such as RFID tags, electroluminescent devices in flat panel displays, and in photovoltaic and sensor devices, and to a field effect transistor, light emitting device or ID tag.

The invention relates to new reactive mesogenic benzodithiophene derivatives, their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices like for example liquid crystal displays, optical films, organic field effect transistors (FET or OFET) for thin film transistor liquid crystal displays and integrated circuit devices such as RFID tags, electroluminescent devices in flat panel displays, and in photovoltaic and sensor devices, and to a field effect transistor, light emitting device or ID tag comprising the reactive mesogenic benzodithiophenes.

In an amorphous silicon thin film transistor-liquid crystal display device and a method of manufacturing the same, gate patterns including a gate line and a gate electrode are formed on an insulation substrate having a display region and a driving circuit region on which a plurality of shift registers are formed, a gate insulating film, active layer patterns and data patterns including source and drain electrodes are formed successively on the substrate, a passivation layer on the substrate has a first contact hole exposing a drain electrode of the display region and second and third contact holes respectively exposing a gate electrode and source and drain electrodes of a first transistor of each of the shift registers, an electrode patterns on the passivation layer include a first electrode connected to the drain electrode of the display region through the first contact hole and a second electrode connecting the gate electrode to the source and drain electrodes of the first transistor through the second and third contact holes, and the gate driving circuit including the shift registers and the wirings are integrated on the insulating substrate without an additional process, thereby simplifying the manufacturing process.

The invention relates to an etchant composition of a film transistor liquid crystal display. The invention provides an excellent etchant for ensuring high stability and engineering margin that can process cone angle etching evenly to metal containing copper. The invention relates to the etchant composition to etch copper distribution line used in circuit pattern of the liquid crystal display. The etchant composition contains ammonium persulfate and azole series composition. The etchant composition contains no peroxide, so stability and engineering margin can be ensured, and has perfect characteristic of cone angle etching contour.

A color filter layer covering both a thin film transistor and a pixel electrode which are formed on a lower substrate. A portion of the color filter layer positioned on the thin film transistor serves a protection layer of the thin film transistor and the other portion of the color filter layer serves a conventional color filter layer which were conventionally formed on an upper substrate opposite to the lower substrate. Therefore, the process number for the LCD is decreased and thus the manufacturing cost of the LCD is reduced.

A thin film transistor (TFT) liquid crystal display (LCD) panel, its array substrate, and its manufacturing method. Color filters are integrated on the TFT array, and color filter stacks are formed on the thin film transistors to replace a black matrix, thereby reducing manufacturing time and costs. The color filter stacks can be placed at the border of the display area of the panel to reduce light leakage. The border of the display area has a liquid crystal injection hole. To allow the size of the liquid crystal injection hole to be increased, and to reduce the light leakage at the hole, color filter blocks and overlapping metal layers can be used at the border of the display area. The color filter stacks and other dielectric layers need to be away from the welding points of repair structures to prevent dielectric layer bursts during a repair process. Storage capacitors can use the feature described above so that the color filters are positioned away from the overlapping portions. Welding is used to improve the electrical contact between the metal layers and the pixel electrode.

A stacked storage capacitor structure for use in each pixel of a TFT-LCD, wherein a first storage capacitor is formed by a first metal layer, a gate insulator layer and a second metal layer. The second capacitor is formed by the second metal layer, a passivation insulator layer and an ITO layer. The first metal layer and the ITO layer are joined together through a via hole which is etched in one insulator etching step during the overall fabrication process through both the gate insulator and the passivation insulator layers. As such, the two capacitors are connected in parallel in a stacked configuration. With the stacked storage capacitor structure, the charge storage capacity is increased without significantly affecting the aperture ratio of a pixel. The ITO and the pixel electrode can be different parts of an indium tine oxide layer deposited on the passivation insulator layer.

The invention relates to a thin film transistor liquid crystal display (TFT-LCD) array substrate as well as a manufacturing method and a test method thereof. TheTFT-LCD array substrate comprises a display area and a peripheral area, wherein the peripheral area is internally provided with at least one first testing line and/or at least one second testing line; the first testing lines are parallel to data lines; gate lines and/or pixel electrodes are overlapped with the at least one first testing line; the second testing lines are parallel to the gate lines; and the data lines are overlapped with the at least one second testing line. The invention effectively overcomes the technical defect that a signal inside a liquid crystal display panel can not be tested in the prior art by installing the test lines in the peripheral area.

A thin film transistor liquid crystal display (TFT LCD), including a TFT array substrate, a color filter substrate and a post spacer disposed between the TFT array substrate and the color filter substrate. The TFT array substrate includes a gate line, a data line, and a TFT disposed in a pixel area defined by the gate line and the data line crossing with each other, and the TFT comprises a source/drain electrode. The post spacer is located in a region at least partially surrounded by the source/drain electrode, the data line and the gate line.

Through enlarging contact area between transparent pixel electrode and drain electrode of thin film transistor (TFT), structure of array base plate (ABP) of TFT LCD form favorable connection. The method for preparing ABP of TFT LCD includes three steps of photoetching technology with masks: first, using first ordinary mask defines pattern of first layer of metal thin film so as to form grid scan lines, and grid electrode; then, using second mask i.e. graytone, semitransparent mask defines patterns of second layer of metal thin film and active layer to form channels of data scan lines, silicon island, source/drain electrodes and TFT; finally, using third ordinary mask defines second layer of insulation film i.e. pattern of passive film, and using lift off stripping technique forms patterns of transparent conductive film, i.e. transparent pixel electrodes. The invention reduces number of mask, and number of photoetching process, and simplifies procedure for preparing ABP of TFT LCD.

The invention discloses a liquid crystal composite containing a difluorooxymethylene bridge polar monomer compound. The liquid crystal composite comprises the following components in percentage by weight: 1%-40% of compounds shown in a general formula I, 1%-40% of compounds shown in a general formula II, 5%-70% of compounds shown in a general formula III, 1%-60% of compounds shown in a general formula IV, 0%-20% of compounds shown in a general formula V and 0%-20% of compounds shown in a general formula VI. The liquid crystal composite disclosed by the invention has the characteristics of high response speed, low driving voltage and high resistivity and voltage conservation rate, has the capability of improving the viewing angle of a liquid crystal display by heightening the pretilt angle of a liquid crystal in a display and is suitable for a fast-responsive TFT-LCD (Thin Film Transistor Liquid Crystal Display).

The invention relates to a TFT-LCD (Thin Film Transistor Liquid Crystal Display) array base plate and a manufacturing method thereof. The array base plate comprises a grid line and a data line, wherein a pixel electrode and a thin film transistor are formed in a pixel region limited by the grid line and the data line, and a shielding layer is formed above a TFT channel region of the thin film transistor. The manufacturing method comprises the following steps of: depositing a grid metal thin film to form the figures of the grid line and a grid electrode; depositing a grid insulating layer, a semiconductor thin film and a doped semiconductor thin film to form the figure of an active layer; depositing a transparent conductive thin film and a source and drain metal thin film to form the figures of a pixel electrode, the data line, a source electrode, a drain electrode and the TFT channel region; and depositing a passivation layer and a shielding thin film to form the figures of the shielding layer, a grid line interface through hole and a data line interface through hole, wherein the shielding layer is positioned above the TFT channel region. The invention avoids the generation of leakage current under the condition of not increasing a production process and improves the size of capacitance storage in unit area.

The invention relates to a resourceful treatment method of waste thin film transistor liquid crystal monitors. The method comprises the following steps: sending liquid crystal display panels in a semi-sealed disassembly table to disassemble and remove mercury-containing fluorescent tubes so as to classify and separately recycle metal materials, plastics and glass and reach the aim of recycling resources; at the same time separating mercury-containing fluorescent tubes, organic polarizing film and liquid crystal and separately collecting and processing so as to realize the harmless and safe disposal of hazardous substances. The invention can be widely used for the resourceful recovery treatment of TFT-LCD computer monitors, LCD TVs and other liquid crystal products with similar structure and functions and is characterized by low operating cost and high recovery rate.

The invention discloses an array substrate and a display device, and relates to the technical field of TFT-LCDs (Thin Film Transistor Liquid Crystal Display). The array substrate comprises an active pixel region and a terminal region; the active pixel region comprises pixel units, grid lines, data lines and grid electrode leads; and two rows of pixel units are arranged between each two adjacent data lines. The array substrate is characterized in that each grid electrode lead is arranged between each two rows of pixel units; the grid electrode leads are correspondingly connected with the grid lines. According to the array substrate and the display device comprising the same, which are disclosed by the invention, the grid electrode leads are arranged in the active pixel region, so that the unbalanced influence of the data lines on pixels can be balanced and a border is narrowed.

The invention discloses an FFS (Fringe Field Switching) type TFT-LCD (Thin Film Transistor Liquid Crystal Display) array substrate and a manufacturing method thereof. The method comprises the following steps of: depositing a first metal film on a transparent substrate, and forming a pattern comprising a grid line, a grid electrode and a common electrode line through a first pattern composition process; depositing a grid insulating layer, an active layer film and a second metal film, and retaining the active layer film and the second metal film in a data line region, a source electrode region,a drain electrode region and a TFT channel region through a second pattern composition process; depositing a first transparent conducting film, and forming a pattern comprising a source electrode, a drain electrode, a TFT channel and a pixel electrode through a third pattern composition process; and depositing a passivation layer, forming a pattern comprising a connecting hole through a fourth pattern composition process, carrying out photoresist ashing process, depositing a second transparent conducting layer, and forming a pattern comprising a common electrode through an off-ground stripping process. The invention can reduce the excessive etching degree of the TFT channel and can ensure the display performance of a liquid crystal display.

The invention provides a drive apparatus and a drive method of a thin-film transistor liquid crystal display, which relate to the technical field of a display drive. In order to solve the problems in the prior art that a maximum value of a system gray-scale voltage at a high refresh frequency cannot be reduced, the S-COF temperature is excessively high, and the display effect is poor, the invention adopts a novel drive architecture design, a plurality of VGH voltages are utilized, and at a low gray-scale phase, the system adopts a relatively low reference voltage to match with the normal VGH voltage, and the needed gray scale is obtained by virtue of white balance settings; and at a high gray-scale phase, the system adopts a relatively high VGH voltage to guarantee the charging efficiency, and the needed gray scale is acquired. By adopting the drive apparatus and the drive method, the maximum value of the gray-scale voltage can be reduced, and S-COF heat is further reduced.