Abstract: The present invention relates to a hold type display device. One frame period that is a period when an image of one screen is displayed is divided into a dark display period when a relatively dark image is displayed and a bright display period when a relatively bright image is displayed. In the dark display period, each of scanning signal lines (GL1, GL2, GL3, etc.) is driven consecutively two times each during a period corresponding to one third of a conventional one horizontal scanning period. Also, in the dark display period, each two lines of the scanning signal lines (GL1, GL2, GL3, etc.) is driven at the same time. A gradation is calculated for generating a video signal such that, at two pixel formation portions arranged at intersections of these two scanning signal lines driven at the same time and a video signal line, a luminance averaged from luminances originally to be appeared at the two pixel formation portions appears.

Abstract: The display device including: a display panel; a backlight; a memory for converting frame rate of an input video signal and outputting a video signal; an interpolation frame generation unit for generating an interpolation frame based on the video signal output from the memory; a histogram generator for generating a histogram based on the input video signal; and a backlight brightness calculation unit for calculating a backlight control signal, the display device further comprising: wherein image data for display, which is obtained by an N-th frame of the input video signal, and image data of the interpolation frame generated based on the N-th frame and an (N+1)-th frame of the input video signal, is input to the display panel; and wherein the backlight control signal calculated based on the histogram generated based on the image data of the N-th frame is used for displaying the image data for display.

Abstract: Described herein are systems and methods that reduce power consumption for a television that includes an LCD display. Power conservation systems and methods described herein alter video information in one or more inactive portions of a display area such that the altered video information decreases power consumption.

Abstract: In one embodiment of the present invention, a first gate driver circuit is disclosed including a shift register and a plurality of amplifier circuits is connected to one end of each gate line, and a second gate driver circuit including a shift register and a plurality of amplifier circuits is connected to the other end of each gate line. The amplifier circuit has an NMOS switch provided in its last stage, and the amplifier circuit has a PMOS switch provided in its last stage. The gate line, is driven by either of two switches connected to its opposite ends being brought into ON state. One of the amplifier circuits may have a CMOS switch provided in its last stage, and the other amplifier circuit has a PMOS switch or an NMOS switch provided in its last stage. As a result, a display device is provided, which has driver circuits arranged in a well-balanced manner to achieve a left-right symmetrical display area.

Abstract: A single IC-chip includes a video processor, a panel processor, an OSD circuit, a CPU, and a timing controller. A memory 18 stores one test pattern datum that is formed of one font datum of X dots in width and Y dots in height in order to test the position of any bright point, dark point, bright line or dark line on the screen of the liquid crystal panel. At a test step, the CPU acquires the test pattern datum from the memory, and a test pattern is created by the OSD circuit so as to display the test pattern at any desired position on the screen of the liquid crystal panel and to simultaneously display the address values of the origin of the display position of the test pattern.

Abstract: A display device displays corrected externally-supplied video signals, and includes plural pixels, a scanning driver and a signal driver which applies display voltages to signal lines coupled to the pixels. The signal driver includes a first converter which converts a format of the externally supplied video signals into a first format, a memory which stores the video signals from the first converter temporarily, a correction circuit which computes correction values based upon the video signals from the first converter and the video signals in the memory and corrects the video signals from the first converter based upon the correction values, and a second converter which converts the first format of the video signals from the correction circuit to a format of the display voltages. The memory stores the correction values also, and the correction circuit corrects the video signals in the memory based upon the correction values in the memory.

Abstract: A display device includes a casing of which a bottom portion is in contact with a setting face when the display device is set; a base member attached to a back face of the casing; and a stand member attached pivotably to the base member. The stand member supports a main body in cooperation with the bottom portion of the casing in an opened state and is capable of brought into a closed state when the stand member is not used. The bottom portion includes a first inclined face being in surface contact with the setting face in the opened state, and a second inclined face inclined relative to a horizontal direction when the casing is vertically erected. The stand member includes a contact portion having a third inclined face being in surface contact with the setting face in the opened state.

Abstract: A video display system based on constructing images through displaying orthogonal basis function components of the image is disclosed. The system is comprised of two display components aligned and driven concurrently. The first display component is a coarse pixel array. The second display component is a spatial light modulator whose geometric details are finer than the first pixel array. The overall system reconstructs the intended video to be displayed at the finer geometric details of the second display component at a minimal image quality loss through the use of time-domain display of orthogonal image basis function components. The resultant system has a considerably reduced interconnection complexity and number of active circuit elements, and also requires a considerably smaller video data rate if a lossy image reconstruction scheme is used. An embodiment with a LED based display and an LCD based spatial light modulator utilizing the concepts, and methods to drive the displays are described herein.

Abstract: A display device, for carrying out image display on a display panel by controlling current flowing in display elements for each pixel based on image data, including display setting circuitry for setting a relationship between image data and current values for current flowing in display elements in response to an input adjustment signal, to set contrast or brightness; estimation circuitry for estimating panel current flowing in all pixels when carrying out display for the display panel based on the image data; and current control circuitry for controlling actual panel current by correcting the set contrast or brightness based on the panel current estimated by the estimation circuitry.

Abstract: A method for driving a display device that outputs an image based on an image source. The method comprises the steps of (i) carrying out a first gradation converting process with respect to a first gradation level of an inputted video source signal; (ii) carrying out a smoothing process with respect to the inputted video source signal that has been subjected to the first gradation converting process; and (iii) carrying out a second gradation converting process with respect to a second gradation level of the inputted video source signal that has been subjected to the smoothing process.

Abstract: A simple double-speed process circuit 60 outputs a video signal V1 twice at a double speed in units of frames. A time-division gradation process circuit 50 performs gradation level conversion on the video signal in order to distribute brightness for one frame cycle to two sub-frame cycles, i.e. first and second sub-frame cycles. An overshoot process circuit 40 performs gradation level conversion on the video signal in order to-emphasize a temporal change of the signal. A drive circuit 20 drives liquid crystal display elements 31 using a video signal V2 obtained through processing by the three circuits. A frame interpolation process circuit may be added to this circuit configuration or may be substituted for the simple double-speed process circuit 60. This makes it possible to improve moving image display performance, while making up for a lack of response speed of the display elements.

Abstract: A video display method consistent with certain embodiments involves sampling video from a video source using a sample and hold frame buffer such that frames are received and stored as the frames of video information are supplied from the video source at a refresh interval to a video display panel in a dynamic mode of operation wherein the screen is refreshed with a new frame of video data at each refresh interval; determining that a static mode of operation is to be entered; sending an output signal from the sample and hold frame buffer to the video display panel during the static mode of operation; and placing the video source in a lower power consumption mode in the static mode of operation. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A method of processing a moving picture includes determining, based on a pixel value at a predetermined position in a first frame included in a moving picture, a pixel value at a corresponding position to the predetermined position in a second frame which is subsequent to the first frame in the moving picture, and a degree of response delay caused at a display of the moving picture by a liquid crystal display, an output value for an output of a picture at the predetermined position in the second frame. The method further includes detecting an edge area from the second frame; and correcting the output value for the edge area so that an absolute difference between the output value for the edge area and a current output value is larger by a predetermined first correction amount.

Abstract: Monitors with cameras are provided. The monitor comprises a display unit, a plurality of cameras, and a processor. Each of the cameras captures at least one picture. The processor receives the pictures from the cameras, and simultaneously displays the pictures in the display unit.

Abstract: Monitors with multiple video inputs and one video output are provided. The monitor comprises an output connector and a processor. The processor receives video signals from a plurality of video sources, and combines the video signals to generate a composite video signal. The processor outputs the composite video signal via the output connector.

Abstract: A system and method for generating multiple images on a video display device is described. The method comprises associating a panel of light pipes with a video display device. The video display device is configured to display an interlaced plurality of individual video signals. The plurality of video signals are displayed on the video display device such that each individual signal from the plurality of video signals is viewable from a plurality of different angles with respect to the video display device.

Abstract: The present invention provides a display apparatus including a display panel that displays individual images to a plurality of viewing directions on a same screen; and a display control portion that causes a first inspection image to a single viewing direction and a second inspection image to another viewing direction to be displayed on the display panel, as well as methods for inspecting and manufacturing the same. According to the present invention, it is possible to execute inspection, confirmation and adjustment of a crosstalk with ease, and reduce the man-hours of the inspection, the confirmation, and the adjustment (manufacture).

Abstract: A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector.

Abstract: Provided is a liquid crystal display device capable of stopping the emitting luminance control of a backlight source on the APL of an input video signal in accordance with an input mode. The liquid crystal display device comprises a liquid crystal panel (7) for displaying a picture, a backlight source for irradiating the liquid crystal panel (7), and a luminance controlling portion (5) for controlling the light source. The luminance controlling portion (5) performs the emitting luminance control of the backlight source according to the featuring quantity of the input video signal, upon a backlight unit (8). In case an input mode (e.g., a PC input mode or a game input mode) to input a predetermined video signal other than the input mode to input a television video signal is selected, the luminance controlling portion (5) controls the backlight unit (8) so that the emitting luminance of the backlight source may be kept constant irrespective of the featuring quantity of the input video signal.

Abstract: A driving apparatus for a liquid crystal display capable of adjusting a field area displayed on a liquid crystal display panel at the exterior thereof is disclosed. In the apparatus, an image signal processor separates a television image signal from a complex image signal and separates a complex synchronizing signal. A liquid crystal display panel displays the television image signal. A timing controller generates a source start pulse determining a display start time of the television image signal displayed on the liquid crystal display panel using an internal clock signal and the complex synchronizing signal from the image signal processor. A delay circuit delays the internal clock signal to apply it to the timing controller.

Abstract: An LCD TV capable of being used as a music station only, which can turn off the internal video decoder and the internal backlight power when the LCD TV only desires to output an audio. The LCD TV panel has a backlight control terminal with a first state and a second state to turn on/off the internal backlight power based on the first or second state. A video decoder has a working mode and a standby mode. When an instruction received by a command input device is a panel backlight power turning-off instruction, a controller produces a control signal to set the backlight control terminal to the second state to thereby drive the LCD TV panel to turn off the backlight power thereon and set the video decoder to the standby mode.

Abstract: Specific image quality adjustment of an image is performed according to a setting made by a user, and contrast compensation is performed such that a brightness is kept unchanged at the center of a specific color region larger than a predetermined size, regardless of the setting of the image quality adjustment. The image quality adjustment is performed by selecting one of a plurality of filters with different frequency characteristics according to the setting of the image quality adjustment, and then performing filter processing on the image by using the selected filter. The contrast compensation is performed upon the image that has undergone the filter processing, by using a contrast compensation value related to the selected filter.

Abstract: A backlight device includes a hot cathode fluorescent tube having a pair of electrodes, a power source arranged to apply voltage having an alternating component to at least one of the pair of electrodes, and an electrode heating circuit arranged to supply heating current to the electrodes. The backlight device further includes temperature sensors that detect the temperatures in the electrodes to be supplied with the heating current. Based on the results detected by the temperature sensors a switch element is driven by the control section. The heating current is thus controlled. With this, the temperatures in the electrodes of the electrical discharge tube can be more accurately grasped, and the temperatures in the electrodes of the discharge tube can be more properly controlled.

Abstract: A liquid crystal display apparatus including a backlight with reduced power consumption is disclosed. The liquid crystal display apparatus according to one embodiment of the present invention includes a liquid crystal display panel, a backlight, and a backlight adjusting portion. To the liquid crystal display panel, an image signal of a certain channel selected from a plurality of channels of television broadcasting, or an image signal output from external equipment is input. The backlight emits light toward the liquid crystal display panel. The backlight adjusting portion turns off the backlight for a predetermined period of time when the selected channel is changed and/or when the input to the liquid crystal display panel is switched between the television broadcasting and the external equipment.

Abstract: A video signal processing circuit is disclosed. The video signal processing circuit includes a difference detection section, first calculation section, and correction amount addition section. The difference detection section detects a difference between a drive voltage for each of pixels of a matrix drive type display panel as a pixel under consideration and a drive voltage of each of pixels adjacent to the pixel under consideration from an input video signal. The first calculation section calculates a correction amount of a drive voltage for a pixel under correction that has a luminance change due to an electric field caused by a difference of the drive voltages for the two pixels detected by the difference detection section. The correction amount addition section corrects a value of the drive voltage for a pixel under correction that has the luminance change based on the correction amount calculated by the first calculation section.

Abstract: An audio/video playback control system of liquid crystal display television (LCD TV) is provided to control an audio signal system, an image display system and a backlight source system of an LCD TV, and the control system uses an audio/video control unit to maintain an activated status in normal conditions, and the audio/video control unit receives a signal transmitted from an external control interface to determine whether or not to output an activate signal to activate the audio processing unit or activate the video processing unit and the backlight source system, or jointly activate the audio processing unit, the video processing unit and backlight source system, so as to achieve the digital control of the LCD TV and the power-saving purpose.

Abstract: A reflection optical system placed between a light valve 5 and a screen 4, wherein curved surfaces are only three reflection surfaces of first to third mirrors 1 to 3, and satisfies the following: (1) ?L<20 degrees, (2) 25 degrees<?UL<55 degrees, (3) 20 degrees<?M1<55 degrees, (4) 15 degrees<?M2<50 degrees, (5) 8 degrees<?M3<30 degrees, (6) ?L<15 degrees, (7) 30 degrees<?UL and (8) 7.5 degrees<|?F|, where ?L: minimum angle which a light beam of pupil center forms with respect to the enlargement side image surface; ?UL: difference between maximum and minimum angles which a light beam of pupil center forms with respect to the enlargement side image surface; ?M1, ?M2 and ?M3: deviation angles of the light beam of pupil center passing the center of the reduction-side image surface in first to third mirrors 1 to 3; and ?F: reduction-side pupil divergent angle.

Abstract: When showing a picture without trimming it while a video signal stored in a frame memory 26 has an aspect ratio different from that of a screen of a plasma display panel 29, with respect to video signals E2a and E2b in areas bordering on blank zones E1 and E3 containing no picture appearing in upper and lower or right and left ends of the screen of the plasma display panel 29, a video signal processor 23 reduces a luminance difference by lowering levels of overshoots 30a and 30b and undershoots 30c and 30d accompanying sharpness processing applied to cope with blurring in edge portions caused by bilinear interpolation, thereby suppresses burn-in of the video signals E2a and E2b in said areas bordering on the blank zones on the plasma display panel 29.

Abstract: A dynamic picture display system. The system consists of an LCD display that is approximately the size of a framed picture, a USB cable that is connected to the LCD display, and a computer system for formatting still or moving images, (pictures) for display on the computer system.

Abstract: A display device includes, in each pixel including a pixel electrode and a counter electrode with liquid crystal therebetween, a memory part which stores video data written to the pixel electrode and a switch part which applies a first video voltage to the counter electrode and selects and applies the first video voltage or a second video voltage which is obtained by inverting the first video voltage to the pixel electrode in accordance with the video data stored in the memory part, in which a liquid crystal inversion AC cycle during which the first video voltage and the second video voltage are driven such that a magnitude of the first video voltage and a magnitude of the second video voltage are exchanged in a predetermined cycle is set longer than a rewrite cycle of video data to the pixel electrode.

Abstract: A novel structure of an active electro-optical device is disclosed. The device is provided with complementary thin film insulated gate field affect transistors (TFTs) therein which comprise a P-TFT and an N-TFT. P-TFT and N-TFT are connected to a common signal line by the gate electrodes thereof, while the source (or drain) electrodes thereof are connected to a common signal line as well as to one of the picture element electrodes. In case of driving the active electro-optical device, a gradation display can be carried out in a driving method having a display timing determined in relation to a time F for writing one screen and a time (t) for writing in one picture element, by applying a reference signal in a cycle of the time (t), to the signal line used for a certain picture element driving selection, and by applying the select signal to the other signal line at a certain timing within the time (t), and whereby setting the value of the voltage to be applied to a liquid crystal.

Abstract: In a method for addressing rows and columns in a liquid crystal display, each phase for addressing rows and columns in the display includes precharging pixels of the display before a row write, to apply a precharge voltage to all pixels. Depending on the selected black or white precharge level, the light box is either switched on permanently, or is switched on during each addressing phase immediately after the precharge or immediately after the row write. The display brightness is thus improved. The display may be of sequential color type.

Abstract: A display apparatus which does not expose a transient phenomenon and an abnormal phenomenon to a user and a method thereof are provided. The display apparatus includes a display which has a unique panel resolution, a receiver which receives an image signal and an additional signal, a display driver, and a controller which, if the additional signal is received, controls such that a specific screen is displayed on the display. Accordingly, a transient phenomenon occurring at the time of a change of a resolution and an abnormal phenomenon occurring if there is a problem in an image signal can be prevented from being exposed to the user without requiring an additional cost and an additional component.

Abstract: A method, apparatus, and system for determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is described. A number of initialization values are set where at least one of the initialization values is a current horizontal resolution and then a difference value for each immediately adjacent ones of the pixels is determined. Next, an edge flag value based upon the difference value is stored in at least one of a number of accumulators such that when at least one of the accumulators has a stored edge flag value that is substantially greater than those stored edge flag values in the other accumulators, then the horizontal resolution is set to the current resolution.

Abstract: An organic EL display device is provided with at least three light emitting regions. A first side of a virtual rectangle is in contact with part of the boundary of the first light emitting region. A second side of the virtual rectangle that is parallel or substantially parallel to the first side is in contact with portions of the boundaries of the second and third light emitting regions. A third side of the virtual rectangle that is perpendicular or substantially perpendicular to the first side is in contact with portions of the boundaries of the first and second light emitting regions. A fourth side of the virtual rectangle that is parallel or substantially parallel to the third side is in contact with portions of the boundaries of the first and third light emitting regions. The second and third light emitting regions have substantially the same width in the direction of extension of the third side.

Abstract: A display method for a liquid crystal panel is provided. The method includes a step of scanning pixels, arranged in a matrix, in an horizontal direction and in a vertical direction, to write video signals, thereby performing display; and a step of delaying the vertical-direction scanning for writing the video signals by a predetermined amount of time and writing a first predetermined fixed-level signal to all pixels in a row specified by the vertical-direction scanning delayed by the predetermined amount of time, in a predetermined time in the horizontal blanking period, thereby performing display.

Abstract: In one embodiment of the present invention, a liquid crystal display device with two liquid crystal panels or more overlapped with each other, the maximum brightness is worked out for each sub-block of an input signal (i.e., a gray scale signal) in a sub-block brightness confirming section. Further, the most suitable index corresponding to the maximum brightness is generated (the most suitable ? value is judged) in a most suitable index generating section. After the most suitable index is generated, the most suitable index is compared with an index which is set for the sub-block immediately before a current and an LCD1LUT and an LCD2LUT are switched to carry out ? corrections in a comparing generating section.

Abstract: A liquid crystal television apparatus includes a tuner, a signal processor, a liquid crystal cell, a light source for backlight, an inverter, and a power supply, includes a first circuit board including a single-sided board, a second circuit board including a multilayered board, and a connector that electrically connects the first and second circuit boards. An area of the second circuit board is smaller than the first circuit board. The signal processor is mounted on the second circuit board. On the first circuit board, the tuner is arranged in a lower portion of a left or right side of the first circuit board, the inverter is arranged in an upper portion of an opposite side of the first circuit board to the tuner, the power supply is arranged in a lower portion in the opposite side, and the connector is arranged in an upper portion of the same side.

Abstract: When a video signal type detecting section detects a video signal of PAL/SECAM (50 Hz) video signal, the input image data is subjected to enhancing conversion with a degree lower than the degree of enhancing conversion in the case of NTSC (60 Hz). With this, the response speed of liquid crystal is improved and an image noise on account of excessive enhancement is eliminated, so that the deterioration in image quality is prevented. As a result, the enhancing conversion with respect to the input image data is performed in such a manner as to compensate the optical characteristics of the liquid crystal display panel, and an image noise on account of excessive enhancing conversion with respect to PAL/SECAM (50 Hz) image data, and hence high-quality image display is realized.

Abstract: It is an object of the present invention to simplify steps needed to process a wiring in forming a multilayer wiring. In addition, when a droplet discharging technique or a nanoimprint technique is used to form a wiring in a contact hole having a comparatively long diameter, the wiring in accordance with the shape of the contact hole is formed, and the wiring portion of the contact hole is likely to have a depression compared with other portions. A penetrating opening is formed by irradiating a light-transmitting insulating film with laser light having high intensity and a pulse high in repetition frequency. A plurality of openings having a minute contact area is provided instead of forming one penetrating opening having a large contact area to have an even thickness of a wiring by reducing a partial depression and also to ensure contact resistance.

Abstract: The present invention relates to electronic mood generating devices. The present invention is particularly adaptable for providing rapidly induced moods, states-of-mind, emotional conditions or overall physiological and behavioral orientations toward relaxation, creativity, inspiration, motivation, or meditation by embedding a series of themed acoustics and images on a standalone device. The present invention can be easily used by anyone due to the simplicity of accessing the pre-programmed themed content, namely through the touch of a button, and the simplicity of reprogramming the buttons to access user-provided content.

Abstract: An LED array includes a plurality of first and second light-emitting rows. Each of the first light-emitting rows is composed of a plurality of red and green LEDs arranged linearly alternately. Each of the second light-emitting rows is composed of a plurality of green and blue LEDs arranged linearly alternately. The first and second light-emitting rows are parallel to each other and arranged alternately. Thus, the LED array can generate preferably equable arrangement of colored light to output preferably equable light mixture. In any 2×2 matrix, there are two green, one red, and one blue LEDs.

Abstract: A liquid crystal display device of the present invention combines two active matrix type liquid crystal panels (a first panel and a second panel). A data signal wiring (4) of each panel is formed by a transparent conductive film, and an island-like black matrix (24) is formed so as to cover a TFT element (3). By such structure, a moire which markedly occurs when combining two or more active matrix type liquid crystal panels is restrained, and the transmittance is improved. Thus, a high display quality liquid crystal display device is provided.

Abstract: A liquid crystal display device for displaying video data having a detection circuit for detecting a luminance distribution based on video data which is inputted, the luminance distribution being indicative of generation frequency of gradations in each of divided region which includes a plurality of gradations. The display device includes a determination circuit for determining at least one of a plurality of divided regions of higher generation frequency of gradation than that of other divided regions based on the luminance distribution, a correction circuit for correcting the video data so as to make a luminance characteristic of the at least one of the plurality of divided regions of higher generation frequency of gradation more abrupt than a luminance characteristic of the other divided regions, and a liquid crystal display panel for displaying the corrected video data. A width of the divided region is changeable.

Abstract: A self-excited inverter comprises a pair of switching devices and a transformer having a primary side to which the switching devices are connected and a secondary side to which a lamp is connected. A pulse voltage is applied alternately to gates of the individual switching devices through a drive winding of the transformer, causing the switching devices to turn on and off in alternate turns to produce an AC voltage which is supplied from a pair of main windings of the transformer to the secondary side thereof. An input voltage supplied to the main windings of the transformer is divided by a voltage divider circuit configured with a plurality of resistors and voltages divided by the voltage divider circuit are applied to the gates of the individual switching devices so that the startup voltage follows the input voltage.

Abstract: A flat display device includes, vertical synchronization lock means which generates an internal vertical synchronization signal, a window signal generating circuit which generates a window signal by use of the internal vertical synchronization signal, a detecting circuit which detects whether or not an external vertical synchronization signal is present in a period of the window signal, and a determination circuit which determines whether a preset condition that a plurality of detection signals are present in a preset period is satisfied or not and controls an output inhibition circuit to inhibit a gate signal from being output when the preset condition is not satisfied.

Abstract: An apparatus for displaying video signals includes an input source to receive video signals having different frame frequencies and provide an input video signal from among the received video signals, a frame frequency detector to detect, as a first frame frequency, the frame frequency of the input video signal, a determiner to determine a second frame frequency according to the first frame frequency and provide a frame frequency conversion rate, the second frame frequency being higher than the first frame frequency, an interpolation frame generator to generate interpolation frames according to the frame frequency conversion rate, and a frame frequency converter to convert the input video signal into a video signal having the second frame frequency by interpolating the generated interpolation frames between original frames of the input video signal.

Abstract: A television receiver includes a liquid crystal module, a control board, a jack holder, a cabinet and a plurality of spacers. The control board has a jack. The jack holder is mounted to the control board to hold the jack. The cabinet houses the liquid crystal module, the control board and the jack holder. The cabinet has an opening to which the jack holder is attached from inner side of the cabinet. The spacers are disposed between the jack holder and the cabinet at locations spaced apart where the jack holder and the cabinet overlap. The spacers maintain a gap between the jack holder and the cabinet.

Abstract: The separately-excited inverter circuit for performing the protecting operation upon the rise in the output voltage caused by the contact failure includes a switching circuit 26b which applies the AC to a primary coil of a pressure-rising transformer 26e, a control circuit C1 which starts a switch control of the switching circuit 26b upon an input of a command signal to set an oscillation state ON from a transmission line for the command signal to command to set the oscillation state ON and OFF, an output voltage monitor circuit 51 which allows a comparator 51a to compare an output voltage of the separately-excited inverter circuit with a predetermined voltage, and to output a predetermined reference voltage when the output voltage is higher than the predetermined voltage, and a thyristor circuit 52 which is turned ON to set the transmission line of the command signal into an oscillation OFF state upon the input of the reference voltage to the gate to stop a switch control of the control circuit C1.

Abstract: The present invention discloses a liquid crystal display apparatus and a liquid crystal television that control the lighting of the backlight to reduce the power consumption and inform the user that the lighting is controlled while no video signal is inputted, enabling to realize the energy saving without impairing the user's convenience. When the microcomputer detects that no video signal is inputted, it stabilizes the oscillation duty ratio of the control circuit 32c at an oscillation frequency lower than a predetermined value by decreasing the duty ratio of the brightness control signal inputted in the control circuit 32c and by shifting the feedback tube current Isen that is feedbacked from the tube current feedback circuit 32f to the high current side.