ocular lcd displays free sample

Ocular LCD Displays is the latest LCD supplier to pull out of the display market. Consequently, we have been contacted by people asking us for replacement displays once supplied by Ocular USA Displays.

Ocular LCD Displays has moved towards chapter 7. They were located in Texas and began business in 1986. It looks like they ceased delivering displays in mid-November of 2014.

Focus Displays Solutions has been in the LCD business for over fourteen years, in that time we have focused on custom LCDs and replacement LCDs for Ocular USA, Seiko LCDs and Standish Displays.

We not only sell replacement displays, but offer US-based technical support to provide quick responses and US-based inventory. In many cases we can ship you samples the same day you call.

This is not only true for discontinued Ocular LCD Displays, but for LCD suppliers that are still in business, but have discontinued a specific LCD product line.

Whether the LCD has been discontinued by Ocular LCD Displays, Seiko, Standish or other LCD suppliers, Focus Displays has been carrying inventory and offering reverse engineering support to help customers quickly located inventory for their display.

Our technical support people may be able to offer an off-the-shelf standard display with a short lead-time or even zero lead-time. If your Ocular LCD display was a custom, we are able to design and build a solution from your data sheets or from an actual display module.

Focus Displays holds inventory in our Chandler, AZ warehouse and can offer many equivalent displays from stock. If it is necessary for Focus to build a prototype sample, all the LCD glass is shipped via fed ex air, so lead times for large orders are a few weeks and not a few months.

Discovering that your current LCD display manufacture has discontinued your LCD Display is never a welcome surprise. Without a drop in equivalent LCD module you may have to discontinue manufacturing or re-design your product to integrate a new LCD replacement. This can be a frustrating experience, very expensive and time-consuming.

The first step is for the customer to contact Focus Displays at 480-503-4295 and send the data sheets for the LCD that you were using. If you do not have a current data sheet or there is a concern that it may not be accurate, Focus may be able to ‘estimate’ a cost from a photo.

If you are not able to supply a data sheet from Ocular LCD Displays and we are not able to locate it, then the next option is to reverse engineer the display. This is where you would send us two displays (these can be non-working) units that we can take apart and create a schematic and electrical characteristics

Below is our process flow chart to explain the steps necessary to move from concept to full production. More details on developing a custom LCD can be located at

Once a LCD supplier discontinues a display, they tend to remove any documentation from their web site. This lack of data sheets increase the amount of work and lead-time required to generate a quote and build samples. In some cases the old LCD supplier has been purchased by another company and much of their documentation is missing.

If you find that your current module supplier has discontinued your display, contact us for support to help you locate a replacement LCD display. We may have old documentation to reduce your lead-time of locating an equivalent display.

If your displays are custom Ocular LCD displays or it is not a standard off-the-shelf display that we hold in inventory, a tooling fee may be necessary. The tooling fee, also called a NRE (Non-Recurring Engineering), is one-time cost that can run anywhere from $500 to $5,000 dollars.

If you pay the tooling fee, then you own the design. We will only sell this display to you or to who you authorize. If another customer contacts us for the same display, we would forward that customer to you or Focus will contact you and notify you there is a customer looking for your custom LCD.

In the past we have tooled up replacement displays and then directed future business to that customer. The customer that paid us the tooling fee can then purchase the displays from us and resell them to another customer.

There have been times when a customer required a replacement display and we felt that this would be a popular display for us to hold in our inventory and sell to our LCD customers.

Will I be able to order samples to test before I need to place a large production order? The answer is yes, when you pay the one-time tooling cost for the Ocular replacement display, we offer samples at no cost.

Since Focus Displays is building an equivalent display to fill your shortage, why not make improvements on the design? Improvements in LCD technology allow for upgrades such as: Brighter backlights, wider viewing angle, sharper contrast and even lower operating voltages.

Speak to one of our LCD specialist to determine the best solution for you. If need be, we can sell you a display with the brighter backlight configuration for you to test and show your end customer.

DISADVANTAGES OF EL BACKLIGHTS INCLUDEEL backlights require an AC (Alternating current) signal. To generate an AC signal, an inverter must be installed either on the customers board or on the LCD itself.

The popularity of EL Backlights has decreased in the last few years. Over 95% of new product designs no longer incorporate an EL backlight, but instead choose a LED backlight or LED edge-lit configuration. Many products needing a replacement display were manufactured several years ago when EL backlights were common. Your Ocular LCD displays may contain an EL backlight. Many LCD suppliers no longer support EL backlight technology. Focus Displays is able to supply EL backlights, although the MOQ at this time is between 500 and 1K units.

In the past, older LCD technology was limited to a smaller operating temperate range. New types of Nematic fluids and ITO (Indium tin oxide) glass now allow many displays to operate as low as -30C. We are able to offer these wider temperature ranges with minimal cost increase. In many cases, the LCDs we sell are the wide temperature range. There is no extra NRE cost to convert from a standard temperature display to a wide temperature. If your Ocular LCD displays were used in a product that operates outside, we recommend a wide temp. If the product is used indoors, it is possible to use normal temperature. If you do not know where the product operates, we recommend a wide temperature version.

Older LCD technologies were limited in backlight color to yellow/green. Now there is a much wider selection. You can choose a new backlight color to be integrated into your display with minimal or no extra cost. Below are photos showing the different backlight colors. The two most popular colors are Blue/White and Black/White. Additional colors include: yellow/green, grey, blue, white, red, orange, pure green, amber and others.

16X2 ALPHANUMERIC LCD, TRANSFLECTIVE (WORKS WITH OR WITHOUT THE BACKLIGHT), AMBER SIDE-LIT BACKLIGHT, FSTN, WIDE TEMP, BOTTOM VIEW (6:00), POSITIVE MODE

16X2 ALPHA-NUMERIC LCD, TRANSFLECTIVE (WORKS WITH OR WITHOUT THE BACKLIGHT), PURE GREEN SIDE-LIT BACKLIGHT, STN GREY, BOTTOM VIEW (6:00), POSITIVE MODE

16X2 ALPHANUMERIC LCD DISPLAY, TRANSFLECTIVE (WORKS WITH OR WITHOUT THE BACKLIGHT), WHITE LED SIDE-LIT BACKLIGHT, FSTN, BOTTOM VIEW (6:00), POSITIVE MODE

Focus Displays is able to help reduce or remove hotspots on your older discontinued LCD module by using new diffuser technology, or decreasing the brightness and increasing the quantity of LEDs.

The majority of LCD technologies require an onboard controller driver to be attached to the display. The exception to this is a segmented display that is interfaced with a 4:1 multiplex or direct drive.

Our goal in working to replace your Ocular LCD displays, or any discontinued LCD, is to provide you the same controller driver chip. If the chip on the replacement display is the same as the chip used on your discontinued display, your firmware (aka the customer’s software) will run fine and the characters and fonts will display correctly.

If the new controller is different than the controller used on your Ocular LCD displays, you may need to modify your firmware. When designing the replacement display, we ask the customer to contact their current supplier to clarify which controller chip was used, but if your supplier has discontinued manufacturing of displays, this will not be possible.In this case, send us two of the displays and we will be able to identify which controller was used. If the new controller chip does not work and you are in need of assistance to modify your software, contact Focus Displays and we can put you in touch with a design house that specializes in this type of work.

Focus Display Solutions specializes in supplying replacement LCD Displays for discontinued and obsoleted LCD Display modules. Many times we will have an equivalent display in stock and can sell it to you that day. Other times, we will need to dig deeper to design a custom solution. In either case, our technical support people will work to sell you a display that will meet your needs.

The use of consumer electronics incorporating LCD-based screens including computers, laptops and smartphones is continuing to increase. However, the LED backlight modules emit extensive blue light that can damage retinal photoreceptors and RPE cells and alter circadian rhythms owing to its short wavelength and high energy, eventually becoming a health hazard. Here, we investigated the effects of the emitted light spectrum of LCDs on LED-induced retinal photoreceptor cell damage and elucidated the detailed mechanisms. As traditional blue light filters and blocking lenses may decrease the luminance of light and reduce the color and contrast sensitivity and visual quality, we alternatively designed LCDs with differing energy emission but the same luminance by adjusting the phosphor ratio and modulating the emitted light spectrum. We also established an index of LCD energy emission, termed OEEI, the value of which is represented by the radiant flux produced by each luminous flux and could be used to evaluate the light hazards. The results of the present study indicated that LCDs with higher OEEI caused stronger light-induced photoreceptor cell damage through the production of ROS and activation of the NF-κB pathway, along with upregulation of protein expression associated with inflammatory response and apoptosis.

In particular, exposure to an LCD with luminance of 300 nits for three days decreased the viability of 661W photoreceptor cells. However, compared to the effects of the LCD with low OEEI, LCD with higher OEEI induced increased levels of cell death and the percentage of apoptotic cells was also higher. Moreover, the effect was OEEI-intensity dependent. Based on the analysis of the emitted light spectrum, the major difference among the three OEEI groups was the radiance of shorter wavelength blue light and green light. Blue light energy emission was much higher in the high OEEI group than that in the medium and low OEEI groups. Although green light energy emission was also higher in the high OEEI group, the photoreceptor-derived cell damage caused by blue light was much more serious than that caused by green light [29]. LCD exposure-induced photoreceptor cell damage could, therefore, be mainly attributed to the level of emitted blue light energy.

Our study demonstrated that the decline of cell viability after LCD exposure was due to elevated cellular ROS formation and mitochondrial dysfunction. Oxygen radicals initiate free radical chain reactions and the oxidative stress results in cellular dysfunction and cell death [30,31]. The effect is stronger in the outer retina because choriocapillaries provide higher concentrations of oxygen. Therefore, 661W photoreceptor cells constitute a good model for studying these effects. In addition, mitochondrial dysfunction can serve as a predictor of cell injury and apoptosis as the mitochondrion is essential for cellular physiological functions and energy production. In the present study, JC-1 staining was used as the indicator of mitochondrial membrane potential damage [32]. Light induces retinal injury through the production of free radicals, oxidative stress, and the damage of mitochondrial membrane potential, as previously reported [15,16,33,34]. The results of our study revealed that lower OEEI exposure produced less ROS, induced less oxidative stress and mitochondrial damage, and subsequently led to decreased apoptosis and cell death compared to that from high OEEI exposure.

NF-κB consists of a family of transcription factors which play critical roles in immunity, inflammation, cell proliferation, differentiation, and cell survival. In order to elucidate the molecular mechanism of the increased oxidative stress and cell apoptosis caused by LCD with higher OEEI, we used western blot analysis and EMSA to evaluate the expression of inflammation and apoptosis-related proteins and the modulation of the NF-κB system. The results of our study revealed that the expression of proteins associated with oxidative stress, inflammation, and the apoptotic pathway all increased in 661W cells exposed to LCD with higher OEEI. In particular, iNOS and HO-1 comprise oxidative stress-related proteins that could be induced in an oxidative environment such as blue light exposure [35,36]. Both ICAM-1 and MCP-1 are pro-inflammatory cytokines that facilitate leukocyteendothelial transmigration, enhance inflammatory vascular permeability, advance cellular extravasation reaction, and promote signal transduction to produce inflammatory effects [37,38,39,40]. Therefore, ICAM-1 and MCP-1 function as strong pro-inflammatory mediators and could be used as indicators to assess the inflammatory status. In comparison, caspase-3 is a marker of cell apoptosis; notably, the cleavage forms of caspase-3 were obviously observed in the group with higher OEEI exposure. Among these, ICAM-1, iNOS, and, MCP-1 are regulated by NF-κB [41,42,43]; in turn, the NF-κB system can be induced by ROS production [44,45]. The result of EMSA in our study demonstrated that exposure to LCDs with higher OEEI activated the NF-κB pathway. Taken together, the findings of the present study suggested that LCD exposure induced oxidative stress and then upregulated the NF-κB pathway. Consequently, it further upregulated NF-κB downstream genes and enhanced the expression of oxidative stress, inflammation, and apoptosis-related proteins, finally inducing cell death. The effect was correlated with OEEI intensity, which also represented LCD energy emission, especially that of blue light.

Our study had some limitations. First, this was an in vitro study. We used 661W cell line as our model system and the cells were still dividing and not fully differentiated. 661W cells have the potential to differentiate into neuronal cells with the treatment of staurosporine [46]. Caspases are also involved in some non-apoptotic processes including cell differentiation [47]. The mechanisms of apoptosis and caspase-mediated cell death may not be the same as that in the well-differentiated human retinal photoreceptors. However, 661W cells express cone photoreceptor features and respond to light stimulation [48]. This cell line has been widely used as the model of light-induced retinal damage in several studies [25,26,27,28,29]. Based on our results, the cleavage forms of caspase-3 were obviously observed in medium and high OEEI group but not in the control or low OEEI group. It implied that apoptosis rather than cell division or differentiation played the major role in the expression of caspases. Further research with primary retinal cell culture or animal experiments may be needed to confirm our results. The exact effect on the human retina and other aspects of light hazards require further investigation. Second, the majority of our experiments were performed under the condition of 3-day exposure with a luminance of 300 nits. Our findings are not necessarily generalizable to other conditions such as higher luminance or longer exposure times. The chronic cumulative effects of daily blue light exposure may cause more photochemical damage. However, the luminance of displays for laptops and other mobile devices is usually between 200 and 300 nits on average. Our results therefore still provided useful information regarding LCD exposure-induced retinal damage in daily life. Third, the visible light spectrum and emitted energy spectrum of the LCDs in our experiments were fixed. We could not analyze the effect of other specific patterns of light spectra and determine the most appropriate light source to maintain eye health. Further studies with specific light spectrum modulation should be considered.

Research shows that the average American worker uses a computer for up to 7 hours a day for work, recreation, or both. Most of us have never realized the degree to which we’re regularly exposed to digital displays. That exposure takes a toll on the health of your eyes, as well as your overall health, over prolonged periods.

Before we talk about how the right computer monitor can protect your eyes, we need to first understand how digital displays can potentially degrade your vision over time.

Computer companies are beginning to address the concerns and dangers that digital displays pose to your eye health. When certain features are integrated into digital displays and computer monitors, your eyes can be successfully protected from digital eye strain.

To remedy the constant exposure you receive to digital displays in everyday life, it’s critical that you take breaks to give your eyes time to recover, reducing the effects of eye strain. Follow the 20-20-20 rule: every 20 minutes, you should focus your eyes on a point 20 feet away from the computer screen for a total of 20 seconds.

Autostereoscopy is any method of displaying stereoscopic images (adding binocular perception of 3D depth) without the use of special headgear, glasses, something that affects vision, or anything for eyes on the part of the viewer. Because headgear is not required, it is also called "glasses-free 3D" or "glassesless 3D". There are two broad approaches currently used to accommodate motion parallax and wider viewing angles: eye-tracking, and multiple views so that the display does not need to sense where the viewer"s eyes are located.lenticular lens, parallax barrier, and may include Integral imaging, but notably do not include volumetric display or holographic displays.

Many organizations have developed autostereoscopic 3D displays, ranging from experimental displays in university departments to commercial products, and using a range of different technologies.Heinrich Hertz Institute (HHI) in Berlin.Sega AM3 (Floating Image System)eye tracking system and a seamless mechanical adjustment of the lenses.

Currently, most flat-panel displays employ lenticular lenses or parallax barriers that redirect imagery to several viewing regions; however, this manipulation requires reduced image resolutions. When the viewer"s head is in a certain position, a different image is seen with each eye, giving a convincing illusion of 3D. Such displays can have multiple viewing zones, thereby allowing multiple users to view the image at the same time, though they may also exhibit dead zones where only a non-stereoscopic or pseudoscopic image can be seen, if at all.

In the early 2000s, Sharp developed the electronic flat-panel application of this old technology to commercialization, briefly selling two laptops with the world"s only 3D LCD screens.FinePix Real 3D W1 digital camera, which features a built-in autostereoscopic LCD measuring 2.8 in (71 mm) diagonal. The Nintendo 3DS video game console family uses a parallax barrier for 3D imagery; on a newer revision, the New Nintendo 3DS, this is combined with an eye tracking system.

Philips solved a significant problem with electronic displays in the mid-1990s by slanting the cylindrical lenses with respect to the underlying pixel grid.Philips produced its WOWvx line until 2009, running up to 2160p (a resolution of 3840×2160 pixels) with 46 viewing angles.Lenny Lipton"s company, StereoGraphics, produced displays based on the same idea, citing a much earlier patent for the slanted lenticulars. Magnetic3d and Zero Creative have also been involved.

With rapid advances in optical fabrication, digital processing power, and computational models for human perception, a new generation of display technology is emerging: compressive light field displays. These architectures explore the co-design of optical elements and compressive computation while taking particular characteristics of the human visual system into account. Compressive display designs include dualcomputed tomography and Non-negative matrix factorization and non-negative tensor factorization.

Dimension Technologies released a range of commercially available 2D/3D switchable LCDs in 2002 using a combination of parallax barriers and lenticular lenses.SeeReal Technologies has developed a holographic display based on eye tracking.

Many autostereoscopic displays are single-view displays and are thus not capable of reproducing the sense of movement parallax, except for a single viewer in systems capable of eye tracking.

"Resolving the Vergence-Accommodation Conflict in Head-Mounted Displays" (PDF). web.archive.org. 22 September 2022. Archived from the original (PDF) on 22 September 2022. Retrieved 22 September 2022.

Ives, Frederic E. (1902). "A novel stereogram". Journal of the Franklin Institute. 153: 51–52. doi:10.1016/S0016-0032(02)90195-X. Reprinted in Benton "Selected Papers n Three-Dimensional Displays"

Lippmann, G. (2 March 1908). "Épreuves réversibles. Photographies intégrales". Comptes Rendus de l"Académie des Sciences. 146 (9): 446–451. Bibcode:1908BSBA...13A.245D. Reprinted in Benton "Selected Papers on Three-Dimensional Displays"

van Berkel, Cees (1997). Fisher, Scott S; Merritt, John O; Bolas, Mark T (eds.). "Characterisation and optimisation of 3D-LCD module design". Proc. SPIE. Stereoscopic Displays and Virtual Reality Systems IV. 3012: 179–186. Bibcode:1997SPIE.3012..179V. doi:10.1117/12.274456. S2CID 62223285.

Lanman, D.; Wetzstein, G.; Hirsch, M.; Heidrich, W.; Raskar, R. (2011). "Polarization Fields: Dynamic Light Field Display using Multi-Layer LCDs". ACM Transactions on Graphics (SIGGRAPH Asia). Cite journal requires |journal= (help)

"Resolving the Vergence-Accommodation Conflict in Head-Mounted Displays" (PDF). web.archive.org. 22 September 2022. Archived from the original (PDF) on 22 September 2022. Retrieved 22 September 2022.

HydroCell™ technology is our proprietary NaCl-free, glycerin-based solution that enables hydration and maintains the volume of cells on the ocular surface.

HydroCell™ technology is our proprietary NaCl-free, glycerin-based solution that enables hydration and maintains the volume of cells on the ocular surface.

HydroCell™ technology is our proprietary NaCl-free, glycerin-based solution that enables hydration and maintains the volume of cells on the ocular surface.

BOLDscreen 3D is a high definition LED LCD monitor which is designed to display dichoptic visual stimuli for stereoscopic and binocular vision experiments using fMRI. We use the latest FPR technology to deliver bright, flicker free dichoptic stimuli to an experiment observer wearing lightweight, MR Safe, passively polarised glasses. When the glasses are not worn, the monitor operates as a standard 2D display.

The monitor has a digital DVI input and can be driven just like the LCD monitor on your desk, with standard software tools. Simply run the provided 20m optical fibre DVI cable through the waveguide and plug into your control room host computer, for high fidelity, noise-free displays.

We have designed BOLDscreen 3D with custom electronics which deliver your stimulus direct to the screen - output is lag free and synchronous to the input video signal. Other "MRI Compatible" LCD displays designed for patient entertainment in MRI typically use TV technology and video scan conversion which deliberately interpolate the input, producing an image which may look easy on the eye, but is unsynchronised and smeared with respect to the input, and therefore of limited use for precision scientific applications.

BOLDscreen 3D incorporates a high resolution 1920 x 1080 LCD panel with LG FPR technology providing true-colour 16.7 million colour displays and contrasts of up to 1000:1.

BOLDscreen 3D provides its dichoptic display function using polarised light. This allows independent images to be delivered to each eye at the same time, for example for studies using binocular rivalry or stereoscopic stimuli. There are no electronics or active shutter glasses inside the coil. Instead a Film Pattern Retarder (FPR) layer is bonded directly to the LCD panel; this extra transparent layer produces oppositely polarised light on alternate video lines (i.e. odd video lines are encoded in one polarisation direction and even video lines are encoded in the opposite direction). When the monitor is viewed normally this has no impact on regular 2D displays because the human visual system does not decode polarised light. However when the observer wears appropriately circular polarised glasses, the left eye will only be able to see odd video lines and the right eye only even video lines. Unlike traditional alternate frame presentations and active shutter glasses, the left and right eye images are delivered at the same time.

We are the only manufacturer and vendor that provides an "MRI Compatible" MR Safe LCD monitor that you can site anywhere inside the MRI room, even directly at the exit of the rear of the magnet bore so that you can maximise the visual field of view.