Abstract: An exemplary liquid crystal display (200) includes a liquid crystal panel (240) having pixel units (248), a scanning circuit (210) configured to activate the pixel units, and a power supply circuit (230) having a control unit (231) and a logic converter (232). The control unit generates a control signal when an external command is applied to the power supply circuit. The logic converter carries out a predetermined logic calculation between the control signal and the external command. The scanning circuit activates all the pixel units to discharge in response to a result of the logic calculation, such that an image displayed by the liquid crystal panel is removed.

Abstract: An exemplary method for fabricating a damascene interconnect structure includes the following. First, providing a substrate. Second, depositing a multilayer dielectric film on the substrate. Third, forming a patterned photoresist on the multilayer dielectric film. Fourth, etching the multilayer dielectric film to form a plurality of trenches, a portion of each of the trenches having an enlarged width at each of sidewalls thereof. Fifth, filling the trenches with conductive metal to form conductive lines such that air is trapped in extremities of the enlarged width portions of the trenches.

Abstract: An exemplary DC to DC converter (200) includes a first DC input (210) connected to a first DC power supply; a second DC input (220) connected to a second DC power supply; a transformer (230) including a primary winding (231), a sub-primary winding (232), and a secondary winding (233) for outputting a AC voltage; a pulse reverse circuit (260) including an input for receiving a square pulse and an output for providing the reverse square pulse; a first switch transistor (240) including a source connected to ground, a drain connected to the first DC input via the primary winding, and a gate connected to the output of the pulse reverse circuit; a second switch transistor (250) including a source connected to ground, a drain connected to ground via the sub-primary winding and a capacitor in series, and a gate connected to the output of the pulse reverse circuit.

Abstract: An exemplary thin film transistor liquid crystal display (TFT-LCD) (100) includes an LCD panel having a number n (where n is a natural number) of gate lines G1-Gn that are parallel to each other, a data driving circuit (120), and a gate driving circuit (110). The gate driving circuit sequentially providing 3-level scanning signals to scan the gate lines G1-Gn. Each 3-level scanning signal sequentially includes a gate-on voltage, a feed-through compensation voltage, and a gate-off voltage wherein the gate-on voltage starts to be provided to a (Gi+1)th (1?i?n?1) of the gate lines G1-Gn at the time when the feed-through compensation voltage starts to be provided to a (Gi)th of the gate lines G1-Gn.

Abstract: An exemplary transflective liquid crystal display panel (2) includes a first substrate (21) with a glass base (210), a second substrate (22) opposite to the first substrate, a liquid crystal layer (23) between the first and second substrates, and an insulating layer (211), a first passivation layer (212), a first electrode layer (213), and a second passivation layer (216) successively disposed at an inner side of the glass base. The first electrode layer has an uneven surface (2131), the second passivation layer is provided only at reflective areas of the transflective liquid crystal display panel, the second passivation layer has a reflection characteristic, and the second passivation layer has a plurality of bumps (2161) at an inmost side thereof.

Abstract: An exemplary liquid crystal display (2) includes a display panel (220), a shield (240), a connecting member (250), and a button circuit board (262). The display has a side wall (227). The shield is engaged with the display panel, and a size of the shield is smaller than a corresponding size of the display panel. One end of the connecting member is attached at the shield. The button circuit board is attached at an opposite end of the connecting member and abuts the side wall of the display panel.

Abstract: A shift register of the present disclosure switches on and off various transistors in order to reduce power consumption. A high input voltage source and a low input voltage source of the shift register are spaced apart from each other so as to reduce signal noise distortion between the voltage sources. The shift register may be employed in a liquid crystal display (LCD).

Abstract: An exemplary active matrix liquid crystal display (AMLCD) panel (20) includes a first substrate (400), a second substrate (600), and a liquid crystal layer (500) sandwiched between the two substrates. The second substrate includes gate lines that are parallel to each other, common lines that are alternate with and parallel to the gate lines, and data lines that are parallel to each other and crossing to the gate lines. The data lines cross the gate lines to define pixel regions. Each of the pixel regions includes a pixel electrode that is between the data lines, a first shielding metal line positioned at a side of the pixel electrode, a second shielding metal line positioned at another side of the pixel electrode. The second shielding metal line is connected to the common line. The first shielding metal line is an electrically floating body.

Abstract: An exemplary method for manufacturing a TFT array substrate (20) typically for use in a liquid crystal display (LCD) includes: providing an insulating substrate (30) comprising a TFT area (31), a display area (32) and a capacitor area (33); forming a gate electrode (232) at the TFT area and a capacitor electrode (222) at the capacitor area; forming an insulating layer (203), an amorphous silicon layer (204), and a doped amorphous silicon layer (205) in turn on the insulating substrate; etching the doped amorphous silicon, the amorphous silicon and the insulating layer at the display area and the capacitor area; forming a source electrode (231) and a drain electrode (233) at the TFT area; forming a passivation layer (225) at the capacitor area; and forming a pixel electrode (221) on the substrate, the pixel electrode covering the display area, the capacitor area, and part of the TFT area.

Abstract: An exemplary backlight module (20) includes a frame (21), a light guide plate (25), and a fixing member (22). The frame includes a substantially rectangular bottom plate (210), and a first, a second, and a third side walls (211, 212, 213) upwardly extending from three edges of the bottom plate. The first side wall is opposite and parallel to the third side wall. A first spacing board (214) inwardly extends from the first side wall. The first spacing board, the first side wall, and the bottom plate cooperatively define a first sliding channel. The light guide plate is accommodated in the first sliding channel of the frame. The fixing member is detachably secured to the frame such that the light guide plate is fixedly accommodated in the frame.

Abstract: An exemplary liquid crystal panel (2) has a first substrate (21); a second substrate (23) opposite to the first substrate, which includes a conductive layer formed (233) thereat; a liquid crystal layer (25) sandwiched between the first and the second substrates, and a sealant (27) provided at the peripheral region of the first substrate and the second substrate. The conductive layer is adjacent to the liquid crystal layer, which remains the peripheral region of the second substrate uncovered.

Abstract: An exemplary liquid crystal display panel (20) includes a pair of substrates (210, 220) spaced from each other in a vertical direction, a liquid crystal layer (230) sandwiched between the substrates, a plurality of spacers (250) evenly distributed between the substrates to resist compression forces in the vertical direction, and a plurality of pixel regions. Each of the pixel regions defines a reflection region and a transmission region, and each of the spacers includes a reflective layer (252).

Abstract: An exemplary power supply circuit (20) includes a first commutating and filter circuit (21), a transformer (24), a second commutating and filter circuit (25), a transistor (27), a pulse width modulation circuit (26) outputting a control signal to control operation state of the transistor, and a feedback circuit (29). An external alternating current voltage is converted into a direct current with a cooperation operating of the transistor, the first commutating and filter circuit, the transformer, and the second commutating and filter circuit. The feedback circuit feeds an operating state of the transformer back to the pulse width modulation circuit, and the pulse width modulation circuit outputs corresponding control signals to turn on or turn off the transistor.

Abstract: An exemplary charging circuit (200) includes for charging a load component (210) includes a power supply unit (220), a feedback circuit, and a sampling resistor (230). The power supply unit includes a pulse width modulation circuit (221) and a power output terminal (222) configured to output a direct current supply. The feedback circuit includes an amplifying comparator (241), a constant voltage circuit (242), a transistor (243), and an optoelectrical coupler (244). The constant voltage circuit is configured to generate a reference voltage and apply the reference voltage to a negative input terminal of the amplifier comparator. An output terminal of the amplifier comparator is connected to the pulse width modulation circuit via the transistor and the optoelectrical coupler. The sampling resistor includes a current sampling terminal connected to a positive input terminal of the amplifier comparator.

Abstract: An exemplary power supply circuit (20) includes a scaler (21), a field-effect transistor (23), a pulse width modulation circuit (25), and a capacitor (29). The scaler includes an output port (213). The pulse width modulation circuit includes an input port (251). The input port of the pulse width modulation circuit is grounded via the capacitor. The field-effect transistor includes a gate electrode (231), a source electrode (232), and a drain electrode (233). The gate electrode is connected to the output port of the scaler. The source electrode is grounded. The drain electrode is connected to the input port of the pulse width modulation circuit.

Abstract: An exemplary method for examining bonding resistance includes providing a first electronic component having a first and second reference pins. A second electronic component having a third and fourth reference pins is also provided. A first input voltage is applied to the first reference pin. A bias resistor connected between the third reference pin and ground is provided, with the third reference pin serving as an output for providing a first reference voltage. The first reference voltage is measured. Bonding resistance between the first reference pin and the third reference pin is evaluated according to the measured first reference voltage.

Abstract: A flat display device (2) has a foldable base (25). The flat display device includes a flat panel (21) pivoted to a base by a hinge assembly (23). The panel is capable of rotating with respect to the base between a position and a second position. A third position of the panel with respect to the base is intermediate between the first position and the second position. A first friction force provided by the hinge assembly when the panel rotates between the first position and the third position is smaller than a second friction force provided by the hinge assembly when the panel rotates between the third position and the second position.

Abstract: A backlight module (1) includes a light source (121), a light guide plate (122) and a grating plate (123). The light guide plate includes a light incident surface (1221), a bottom surface (1223) adjacent the light incident surface. The light source is provided adjacent to the light incident surface of the light guide plate. The grating plate is provided adjacent to the bottom surface of the light guide plate. The grating plate is configured for reflecting light beams and polarizing the light beams.

Abstract: An exemplary light emitting diode includes a main body, a red light emitting chip, a green light emitting chip, and a blue light emitting chip. The main body includes two inner side surfaces opposite to each other and a inner bottom surface connected with the side surfaces. The side surfaces and the bottom surface cooperatively define an accommodating space. The red light emitting chip, the green light emitting chip and the blue light emitting chip are positioned at the bottom surface and the side surfaces of the accommodating space, respectively.

Abstract: An exemplary liquid crystal display device (100) includes a first frame (11), a liquid crystal panel (12), a backlight unit (13) for providing uniform light for the liquid crystal panel, and a second frame (14) cooperating with the first frame to define a space receiving the liquid crystal panel and the backlight unit. The backlight unit includes a reflector (17) and a lamp (16) received in the reflector. The reflector includes a hook (175). The second frame includes a through hole (145). The hook engages in the through hole, thereby facilitating the fixing of the reflector to the second frame.