Abstract: In one embodiment of the present invention, an active matrix liquid crystal device (AMLCD) includes an active matrix substrate including an active matrix area and a counter electrode substrate carrying a common electrode whose voltage may vary so as to reduce liquid crystal degradation. A layer of liquid crystal material is disposed between the substrates and a temperature measuring arrangement is provided on the active matrix substrate. This arrangement includes a temperature sensing liquid crystal capacitor which in turn includes a first electrode formed on the active matrix substrate outside the image generating region of the active matrix area and separated from the common electrode, which forms the second electrode of the capacitor, by the liquid crystal layer, which forms the capacitor dielectric.

Abstract: A gate-off-voltage-generating circuit that can enhance display quality at low temperatures, a driving device, and a liquid crystal display having the same are provided. The driving device includes a boost converter to receive and boost a first input voltage, and output a driving voltage and a pulse signal; a gate-on voltage generator to receive the driving voltage and output a gate-on voltage; and a gate-off voltage generator including a first temperature-compensation unit to receive the driving voltage and output a first temperature-dependent variable voltage, the level of which varies according to the ambient temperature, a first voltage follower to receive and transfer the first temperature-dependent variable voltage, and a first charge-pumping unit to shift the first temperature-dependent variable voltage by the amplitude of the pulse signal and output a gate-off voltage.

Abstract: A temperature of the plasma display panel is detected by a temperature sensor. An apparatus includes a display panel, a plate disposed adjacent to a rear surface of the panel, and a board disposed substantially parallel to the plate. A temperature sensor is formed on the board, and the temperature sensor is disposed between the plate and the board.

Abstract: In a liquid crystal display apparatus of an OCB type, a frame inversion drive is carried out to invert the polarities of a white level voltage and a black level voltage in conformity with the polarity of an opposed voltage on the frame-to-frame basis, so that the amplitudes of the black level voltage and the white level voltage decrease with rise in environmental temperature.

Abstract: A method of driving a liquid crystal display element that applies an AC pulse voltage to drive liquid crystal includes: when the temperature of the liquid crystal is higher than a reference temperature, generating the AC pulse voltage for high temperature having a pulse width that is shorter than a reference pulse width of a reference AC pulse voltage used at the reference temperature; and applying the generated AC pulse voltage to the liquid crystal in a period that is equal to the reference pulse width.

Abstract: The prevent invention provides a liquid crystal display element capable of displaying an image in a short time during screen rewriting, a method of driving the same, and an electronic paper including the same. A liquid crystal display element includes: B, G, and R display units that have liquid crystal layers (not shown in FIG. 16) which are driven a predetermined number of driving times to obtain desired grayscales, and display images on the basis of the grayscales; a grayscale conversion control unit (driving control unit) that can determine a driving method on the basis of an external environment; and a driving unit that drives the liquid crystal layers using the determined driving method.

Abstract: A temperature sensing apparatus for a liquid crystal display device is disclosed. The apparatus can measure the device temperature without the existence of a conventional PN junction. The temperature sensing apparatus comprises at least one thin-film transistor (TFT) cell, a variable current source, a buffer and a sensing circuit. Each TFT cell has its respective drain and gate coupled together and a source coupled to a ground. The variable current source is coupled to the drain of the TFT cell. The buffer has an input coupled to the drain of the TFT cell. The sensing circuit has an input coupled to an output of the buffer and an output to produce a voltage output signal. The temperature of the TFT cell is determined by inputting two currents at a sub-saturation region of the TFT cell and measuring voltage output signal difference.

Abstract: The present invention discloses a driving module for driving an LCD panel and a method of forming an LCD device. The driving module includes: a source driving circuit, for driving the LCD panel; and a heat sink module, coupled to the source driving circuit and integrated with the LCD panel, for dissipating heat generated from the source driving circuit. The method of forming an LCD device including: utilizing a specific semiconductor process to form a LCD panel; and forming a heat sink module integrated with the LCD panel during the specific semiconductor process.

Abstract: An electronic device, a method and a computer program product for controlling the operation of a display. The electronic device comprises a display for displaying an RGB (Red/Green/Blue) image, a lighting device coupled to the display for supplying light to the display for enabling display operation thereof, and a color temperature detecting device configured to detect a color temperature of ambient light. A controller is coupled to the lighting device and the color temperature detecting device. The controller then controls the lighting of the lighting device in dependence of the detected color temperature of the ambient light in order to correct brightness or chromaticity or both of an RGB image displayed on the display.

Abstract: A light emission device includes a substrate, a plurality of scan lines on the substrate, a plurality of column lines on the substrate, and a plurality of light emission pixels at crossings between the scan lines and the column lines. Corresponding pixels of the plurality of light emission pixels connected to a common scan light are classified into at least first and second groups, and a timing of a first period for which a first light emission data signal is transmitted to the first light emission pixels is different from a timing of a second period for which a second light emission data signal is transmitted to the second light emission pixels.

Abstract: A liquid crystal display device capable of correcting variation in luminance in a drive beginning period of the liquid crystal display device with a simple configuration by a microcomputer 15 referring to a luminance stabilization program and a look-up table recorded on a ROM 16 and executing contrast adjustment of the video signal by the video circuit 12 based on the look-up table, and a liquid crystal television using the liquid crystal display device are provided.

Abstract: A TFT element for ambient light detection and a TFT element for temperature detection are connected in series. In a first period, a first switch element is off, and a second switch element is at a hi side, so that a threshold voltage of the TFT element for temperature detection is detected. In a second period, a first switch element is on, and a second switch element is at a low side, so that temperature is detected. In a third period, a first switch element is on, and a second switch element is at a hi side, so that ambient light is detected. An input voltage and a control voltage to each of the TFT elements are set by a voltage controller provided in a drive circuit based on the threshold voltage.

Abstract: A display device includes a circuit which is configured to execute such control that write of a non-video signal in pixels is executed in the first period, write of a video signal in the pixels is executed in the second period which partly overlaps the first period, write of the video signal, in the pixels is executed in the third period which partly overlaps the second period, the write of the non-video signal and the write of the video signal are alternately executed in units of one horizontal cycle or horizontal cycles in a period in which the first period overlaps the second period, and the write of the video signal corresponding to the second period and the third period are alternately executed in units of one horizontal cycle or horizontal cycles in a period in which the second period overlaps the third period.

Abstract: A DC-DC converter includes a temperature compensation circuit arranged between a feedback differential amplification circuit and an output voltage detection circuit to compensate the variation of the voltage level of the DC output voltage of the converter caused by ambient temperature changes. The temperature compensation circuit includes a temperature detection circuit that detects the ambient temperature and, in response thereto, generates a temperature signal; and a current source circuit that is connected between a feedback signal input terminal of the feedback differential amplification circuit and the output voltage detection circuit. The current source circuit, based on the temperature signal, generates an electrical current and a compensation voltage proportional to the electrical current. The compensation voltage is applied to the DC output voltage to thereby regulate the voltage level of the DC output voltage.

Abstract: An exemplary liquid crystal display device includes a scanning voltage adjusting circuit (250), a scaler (220), and a liquid crystal display panel (200). The scanning voltage adjusting circuit is configured for detecting an environment temperature and generating a scanning voltage adjusting signal corresponding to the environment temperature. The scaler is capable of receiving the scanning voltage adjusting signal and generating a scanning voltage according to the scanning voltage adjusting signal. The liquid crystal display (LCD) panel is configured to be driven by the scanning voltage and thereby display images.

Abstract: The invention provides a display apparatus having a temperature sensor and a step-up circuit generating a drive voltage of the display apparatus by stepping up a power source voltage. The temperature sensor provides temperature data indicative of the temperature of the display panel with a reduced measurement error without limiting the operation of the step-up circuit. To do so, in view of the fact that the step-up circuit has alternating active state in which the circuit is stepping up a source voltage to output a required step-up voltage and inactive state in which no stepping operation is made, the temperature sensor is adapted to obtain temperature data while the step-up circuit is inactive. The temperature data obtained is supplied to a temperature compensation means for changing the drive condition setting value that define the drive condition of the display panel to compensate for the temperature change.

Abstract: In order to solve a problem of deviation of a gamma curve of a display device due to temperature variation, the present invention provides a thermal compensation device for compensating a gamma curve of a display device. The thermal compensation device includes a thermal sensor, a storage unit, and a thermal compensation unit. The thermal sensor is used for detecting an ambient temperature inside the display device. The storage unit is used for storing a plurality of numerical data groups. The thermal compensation unit is coupled to the thermal sensor and the storage unit is used for selecting one numerical data group from the plurality of numerical data groups and transforming original image data into compensated image data with the selected numerical data group.

Abstract: A display driver for driving a display element includes an electro-optical layer to which a drive voltage is applied, the drive voltage being a voltage corresponding to a scanning voltage and a data voltage, the scanning voltage being a voltage applied to a scanning electrode, the data voltage being a voltage applied to a data electrode.

Abstract: The method and apparatus for measuring response time of liquid crystal includes controlling temperature of a liquid crystal display panel, generating a liquid crystal driving signal having a variable voltage level that is changed according to a response property of the liquid crystal display panel and a target voltage level, and supplying the liquid crystal driving signal to the liquid crystal display panel, detecting the response property corresponding to the liquid crystal driving signal, and adjusting the variable voltage level until the response property reaches a desired level and setting a modulated data substantially equal to the variable voltage level when the response property reaches the desired level, the modulated data based on temperatures being determined by changing the temperature of the liquid crystal display panel. Also, method and apparatus for driving a LCD device using the above-described method.

Abstract: In a display device comprising a cooling suction fan and an air filter arranged on the suction side of the cooling suction fan, there are provided first means for measuring the value of a current flowing through a power supply line to the cooling suction fan for each predetermined time period, and second means for judging that the air filter is clogged when the measured current value is not more than a predetermined reference value, to inform the user that the air filter is clogged.

Abstract: A liquid crystal display (LCD) which includes a liquid crystal panel and a temperature-measurement apparatus. The temperature-measurement apparatus includes a temperature sensor which includes a variable-resistance element having a resistance that varies according to the temperature of the liquid crystal panel and a fixed-resistance element connected in series to the variable-resistance element, divides a first input voltage, and outputs a first temperature-dependent voltage that varies according to a temperature of the liquid crystal panel. A voltage divider which divides a second input voltage and outputs a reference voltage is provided. A differential amplifier receives at a first input the first temperature-dependent voltage and receives at a second input the reference voltage and amplifies a difference between the first temperature-dependent voltage and the reference voltage, and provides at an output a second temperature-dependent voltage.

Abstract: The invention relates to a display device that performs gradation display by means of a sub-field driving scheme. The display device according to an aspect of the invention has a display area in which a plurality of pixels is arrayed, where the display device controls an ON/OFF state for each of the plurality of pixels for each of a plurality of sub fields that make up one field. One part of the plurality of sub fields constitutes a first time period, whereas the other part of the plurality of sub fields constitutes a second time period.

Abstract: The device includes: a write-gray scale level determining means (2), (3) for determining the write-gray scale level data for input image data that compensates the optical response characteristic of a liquid crystal display panel (4), in accordance with, at least, the combination of the gray scale level transitions from a previous vertical period to a current vertical display period; and an achievable gray scale level determining means (5), (6) for generating the achievable gray scale level data for input image data after a lapse of one vertical display period of the liquid crystal display panel, in accordance with, at least, the combination of the gray scale level transitions from one vertical display period to the next.

Abstract: A liquid crystal display device of the present invention includes (i) a temperature sensor provided in at least one of pixels in a displaying area of a display panel, (ii) a lead line buried in the display panel, for transmitting a detection signal from the temperature sensor to a vicinity of the display panel, (iii) a temperature measurement control section for measuring a pixel temperature based on the detection signal transmitted from the temperature sensor, (iv) a data signal line driving section for outputting the data signal to the data signal lines in accordance with the pixel temperature measured in the temperature measurement control section.

Abstract: A device and method for controlling a display. The method includes: receiving image data, determining backlight illumination intensity in response to an allowed image degradation level parameter and to ambient light, and determining a display refresh parameter in response to a temperature parameter. A method and device for controlling a display, the device includes: a frame buffer adapted to receive image data, a processor adapted to receive a power parameter and an allowed image degradation level parameter, and an image converter that is adapted to perform a linear image conversion and a non-linear image conversion. The processor is adapted to determine which conversion to perform in response to a power parameter.

Abstract: An image display device includes an image signal source unit to provide primary image data and selected compensation data to compensate the primary image data, and a display unit to display images using compensated image data obtained by compensating the primary image data with the selected compensation data. The selected compensation data is selected from a set of compensation data in response to variation of ambient temperature of the display device. The image display device also includes a temperature sensor to detect the variation of the ambient temperature of the display device and provide temperature data corresponding to the variation of the ambient temperature. The image display device also includes a frequency sensor to detect frequency variation in a vertical synchronizing signal of the display unit, wherein the selected compensation data is selected from a set of compensation data in response to the variation of the ambient temperature and the frequency variation.

Abstract: A display apparatus and a driving method thereof, in which the display apparatus includes a temperature sensor detecting a temperature, a first memory, a timing controller that receives an (n?1)th image signal and an nth image signal of consecutive frames, corrects the nth image signal and outputs the nth image signal, wherein the timing controller generates a clock signal whose phase varies according to the detected temperature, writes the nth image signal in the first memory in synchronization with the clock signal, reads the (n?1)th image signal from the first memory, and compares the nth image signal and the (n?1)th image signal with each other to then correct the nth image signal based on the comparison result, a data driver that provides an image-data voltage corresponding to the corrected signal of the nth image signal, and a liquid crystal panel that displays an image corresponding to the image-data voltage.

Abstract: The present invention discloses the circuit configurations and control logic to monitor the temperature of the liquid crystal as directly as possible then render and pass this data to a processing unit. The control logic in the processor then issues corrections to the voltage delivered to the liquid crystal cell to permit the liquid crystal device to continue to operate in its useful voltage range (the monotonically increasing range previously mentioned.) The object is to provide temperature control and compensation control module that would be flexibly applicable to different types of microdisplay systems. For a microdisplay system where the E-O curve decreases monotonically with increasing voltage, the control module can issue an appropriate correction signal for controlling and compensating the performance of a microdisplay as temperature variation occurs.

Abstract: An exemplary liquid crystal display (200) includes a first substrate (210), a second substrate (220) parallel to the first substrate, a liquid crystal layer (230) between the first and second substrates, a resistivity sensor (280) adjacent to the liquid crystal layer, and a driver (260) configured to provide driving voltages to at least one of the first and second substrates. The resistivity sensor detects a resistivity of the liquid crystal layer, and the driver compensates the driving voltages according to the resistivity of the liquid crystal layer.

Abstract: An image display device includes an image signal source unit to provide primary image data and selected compensation data to compensate the primary image data, and a display unit to display images using compensated image data obtained by compensating the primary image data with the selected compensation data. The selected compensation data is selected from a set of compensation data in response to variation of ambient temperature of the display device. The image display device also includes a temperature sensor to detect the variation of the ambient temperature of the display device and provide temperature data corresponding to the variation of the ambient temperature. The image display device also includes a frequency sensor to detect frequency variation in a vertical synchronizing signal of the display unit, wherein the selected compensation data is selected from a set of compensation data in response to the variation of the ambient temperature and the frequency variation.

Abstract: In a gate driving circuit and a display apparatus having the gate driving circuit, a pull-up transistor of a present stage among plural stages, which are connected one after another to each other and sequentially output a gate signal, pulls up a present gate signal output through an output terminal to a gate-on voltage. A buffer transistor is connected to a control terminal of the pull-up transistor to receive a previous output signal from a previous stage and to turn on the pull-up transistor. The buffer transistor has a chargeability that is about two times or greater than the chargeability of the pull-up transistor. Thus, the size of the pull-up transistor may be reduced, thereby preventing a malfunction of the gate driving circuit when the gate driving circuit is operated under conditions of high temperature or low temperature.

Abstract: To automatically adjust the quality of a projection image commensurate with the performance in-time deterioration and aging of projector component parts in an image projection system, each projector detects an integrated service time of its own light-source lamp and a service time and temperature of a liquid-crystal panel, and sends a detection result thereof to a control unit in compliance with a request from the control unit. These parameter values are parameter values having an effect upon the quality of a projection image and varying with time. The control unit copes with the projectors depending upon the detection result received from the projectors, to set predetermined control data for use in image-quality adjustment and send the control data respectively to the projectors. Each projector controls the driving to its light-source lamp and liquid-crystal panel, depending upon the control data received from the control unit.

Abstract: Compensated drive circuit adjusting for changes in the threshold voltage of a drive transistor and for aging of an OLED device, comprising: a data line carrying analog data representative of the brightness level, and a select line; the drive transistor connected to a power supply and to the OLED device such that when the select line is activated and a voltage from the data line is applied to the gate electrode of such transistor and current proportional to the applied voltage will flow through the drain and source electrodes through the OLED device; circuitry for measuring first and second parameters associated with the drive circuitry and responsive to the measured first and second parameters for computing offset voltages to adjust for changes in the threshold voltage of the drive transistors and for aging of the OLED device.

Abstract: An exemplary display device (200) includes a control circuit (22), a driving circuit (24), and a display module (25). The control circuit is configured to generate temperature compensation values according to ambient temperature signals inputted to the control circuit. The driving circuit is configured to generate compensated display signals according to the temperature compensation value generated by the control circuit. The display module is configured to receive the compensated display signals outputted by the driving circuit, and display images under the control of the compensated display signals. A method for driving the display device is also provided.

Abstract: A liquid crystal device is provided comprising: a liquid crystal panel displaying grayscale levels by applying a driving signal to a pair of electrodes having liquid crystal interposed therebetween and displaying white when voltage is applied, the driving signal having a pulse width that is modulated according to the grayscale level; a temperature detecting unit detecting a temperature of the liquid crystal panel; a discrimination unit discriminating whether the temperature detected by the temperature detecting unit is a predetermined threshold value or more; and a pulse width defining unit that defines the pulse width according to the grayscale level such that the pulse width of the driving signal is gradually increased as the grayscale level becomes bright when the temperature is the threshold value or more; and changes the pulse width such that the pulse width corresponding to the darkest grayscale level is larger than the pulse width corresponding to that at which the temperature is the threshold value or

Abstract: An image display device for displaying an image on a display panel is provided. The image display device includes a temperature variation rate detecting unit that detects a temperature variation rate of the display panel; a driving condition setting unit that sets driving conditions so as to display the image on the display panel in accordance with an image data of the image; a driving condition changing unit that changes the set driving conditions in accordance with the detected temperature variation rate; and a display panel driving unit that displays the image on the display panel by driving the display panel with the driving conditions changed by the driving condition changing unit.

Abstract: A liquid crystal display device includes a liquid crystal display panel having an effective area and a non-display area, and a temperature sense pattern provided within the non-display area of the liquid crystal display panel.

Abstract: A liquid crystal display device comprises a liquid crystal display panel including a liquid crystal layer for a display in an OCB mode, a heating unit which heats the liquid crystal display panel, a temperature detecting unit for detecting a temperature of the liquid crystal display panel, a time measuring unit which measures a heating time that the heating unit has operated, and a transfer drive circuit which applies a transfer drive voltage to the liquid crystal layer to transfer the alignment state of liquid crystal molecules from a splay alignment to a bend alignment in advance. The transfer drive circuit is configured to determine a transfer time as an application period of the transfer drive voltage on the basis of a relationship between the heating time and temperature which are obtained from the time measuring unit and temperature detecting unit at a desired timing.

Abstract: A liquid crystal display including a liquid crystal panel, a temperature sensor sensing a temperature of the liquid crystal panel, a gray scale voltage generating part including a plurality of gray scale voltage generating units each generating a first gray scale voltage set corresponding to a preset temperature and a controller generating a second gray scale voltage set corresponding to the sensed temperature using the first gray scale voltage sets when the sensed temperature does not correspond to the preset temperature.

Abstract: A circuit for driving an electro-optical device including a plurality of pixels includes a look-up table that stores response-compensated data in accordance with supplied image data and image data of an immediately preceding frame, which is one frame before the frame of the supplied image data, a temperature sensor that detects an ambient temperature, and a calculation circuit that calculates response-compensated data corresponding to the temperature detected by the temperature sensor and that updates contents of the look-up table. Response-compensated data read from the look-up table according to a grayscale level specified by the supplied image data and a grayscale level specified by the image data of the immediately preceding frame is converted into a data signal, and the data signal is supplied to one of the pixels that corresponds to the supplied image data.

Abstract: A display panel driving apparatus includes a display control section for controlling display on a plasma display panel, a drive section for driving the plasma display panel on the basis of a signal supplied from the display control section, and a transmission line for transferring data between the display control section and the drive section. The drive section includes a decoder section for decoding the signal supplied from the display control section and generating a control signal to generate drive pulses.

Abstract: A back light unit includes a lamp, a lamp house where the lamp is housed, a diffusion plate provided parallel to a main surface of the lamp house, a display part receiving light irradiated from the lamp and displaying, a frame member that has a structure in which the diffusion plate and the display part can be housed inside of the frame member and that detachably connects to the lamp house, and a shield member connected in a range from the diffusion plate to the frame member so that a space between the diffusion plate and the frame member is shielded.

Abstract: Process and device for control of an electron source with matrix structure, regulated by the emitted charge. The invention is applicable to an electron source comprising addressing rows and columns which intersect to define emission areas, the electrons being supplied by the columns. According to this invention, the emission of electrons is triggered by increasing the potential of the columns to a value that will enable preferential emission of unaddressed rows. Then, throughout the emission duration, the potential of columns will be kept equal to this value, while simultaneously making measurements in the columns of the quantity of charges emitted by the pixels in the said columns. Secondly, when the quantity of charges measured on a column reaches a required charge quantity, the potential of this column is switched to a value that will block the emission of electrons. The invention is particularly applicable to flat field emission displays.

Abstract: An image display apparatus that displays an image on a display includes: a temperature measuring unit that measures temperatures of a plurality of display regions of the display; a determining unit that determines whether or not a temperature difference between one of the plurality of display regions and the other display regions is larger than a threshold value on the basis of the temperatures measured by the temperature measuring unit; a driving condition setting unit that sets a driving condition for displaying the image on the display according to image data of the image; a driving condition changing unit that, in a case when the determining unit determines that the temperature difference is larger than the threshold value, changes the set driving condition to a driving condition different from that in a case in which the temperature difference is determined to be equal to or smaller than the threshold value; and a display driving unit that drives the display under the driving condition changed by the dri

Abstract: In a method for driving a display, a display, and a program therefor, a memory stores uncorrected video data for a desired frame and for a current frame until a next frame. Meanwhile, a correction section reads uncorrected video data for the previous frame and the current frame from the memory and corrects the video data for the current frame. Further, a processing section corrects video data for the next frame based on the corrected video data for current frame so as to facilitate a grayscale level transition from the current frame to the next frame.

Abstract: Provided is a display device (100) which predicts a predicted temperature difference between a peripheral display area and an outer peripheral area of a display section (200) based on an input image signal from an image-signal input section (10). When the predicted temperature difference is a set reference value or more, the display device (100) controls luminance of an image displayed on the peripheral display area so as to be lowered. Therefore, the predicted temperature difference is predicted by using only the input image signal, and the luminance of the image displayed on the peripheral display area can be appropriately controlled without performing a calculation using the predicted temperature difference. Hence, such a luminance control for preventing breakage of the display section (200) can be easily performed.

Abstract: A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and aligning layers are formed. The liquid crystal switches between a planar alignment state and a focal-conic alignment state depending on the voltage applied thereto through the electrodes. In a planar state, light reflected by the electrodes is absorbed by the circular polarizer, and a black display is made. In a focal-conic state, light reflected by the electrodes passes through the circular polarizer, and a white display is made.

Abstract: There is provided a liquid crystal comprising a liquid crystal panel with a memory effect (2) sandwiching liquid crystals of a memory effect, a driving circuit (10) outputs driving voltage for driving the liquid crystal panel with a memory effect (2) and a temperature sensor for detecting an ambient temperature, wherein the driving circuit (10) includes a control circuit (11) for varying a driving voltage. The control circuit has a first temperature compensation range where the driving voltage is increased from a high temperature side toward a lower temperature side according to temperature information detected by the temperature sensor (3), and a second temperature compensation range where the driving voltage is rendered in a maximum value at a predetermined temperature, or rendered substantially equal to, or smaller than the maximum value on a side of the boundary, lower than the predetermined temperature.

Abstract: A temperature control and compensation system is implemented by employing a closely coupled electrical architecture that applies the measured microdisplay temperature, one for each color channel, together with lookup tables preloaded with measured or predicted data for a display, to modify the liquid crystal voltage operating range of each microdisplay as required to achieve and maintain the proper white point operating point for the display. The electrical architecture includes functional blocks as required for realizing the temperature compensation and control for each color channel. The system microprocessor and control unit employs a lookup table to set the control registers on each microdisplay controller with values according to a computed value using the data retrieved from the lookup tables. The range of values in the lookup table includes setups for a number of varied conditions. One of these conditions is temperature.

Abstract: An image display apparatus and method are provided for visually improving a sense of contrast by adjusting contrast and a light source to have a correlation. A characteristics detection part detects MAX, MIN, and APL (average) of an input signal. A control data generation part calculates Gain for amplifying a difference between MAX and MIN to a width of a dynamic range and Offset indicating the DC level to be shifted so that the input video signal amplified by Gain falls within the output dynamic range of a DC level adjustment part. A signal amplitude adjustment part amplifies the input video signal with reference to APL and in accordance with Gain. The DC level adjustment part shifts the DC level of the amplified input video signal in accordance with a value of Offset. A light source control part controls a light source so that a visual brightness level on a screen is equal to a brightness level of the input video signal.